The answer is d) organic chemistry
The Cambrian Period marks an important point in the history of life on Earth; it is the time when most of the major groups of animals first appear in the fossil record. This event is sometimes called the "Cambrian Explosion," because of the relatively short time over which this diversity of forms appears
Explanation:
the last part of interphase is called the G2 phase. The cell has grown, DNA has been replicated, and now the cell is almost ready to divide. This last stage is all about prepping the cell for mitosis or meiosis. During G2, the cell has to grow some more and produce any molecules it still needs to divide.
They use tools to help take precise measurements, carry out experiments, and make observations.
Answer:
sexual reproduction, because the genetic material comes from both parents.
Explanation:
The sperm and egg produced contain different combination of genes
